Low levels of important nutrients like selenium can turn a benign virus into its virulent form, claim American scientists. Researchers Melinda Beck and her colleagues at the University

A US company, T Cell Sciences, has developed a cheaper and easier diagnostic test for people infected with AIDS. Called TFAx CD4, the test measures levels of critical white blood cells, known as

The Iraqi government is finally coming clean on its secret biological weapons programme. Rolf Ekeus, the un official in charge of eliminating Iraq's weapons of mass destruction, informed the world

With increasing efficiency of solar cells, their use becomes more popular

Making pistons smaller and more numerous increases an internal combustion engine's efficiency

A non-polluting hydrogen-powered automobile developed over 14 yews may welk he the vehicle that its inventor Gus Ehrenberg, an engineering graduate from the California Institute of Technology and

Brazilian researchers claim that they have been able to turn the oil of the African palm into a diesel substitute (Indian Forester, Vol 121,No4). This exceptional fuel possesses thermodynamic

One for the birds: Meeting recently under the auspices of the Convention on Migratory Species (cms), representatives of over 60 nations signed an ambitious inter-governmental agreement -- aimed at

Seasonal outbreaks of meningitis at the beginning of each year is not quite unusual in West Africa. This year too, the disease -- which affects the brain and the spinal cord -- has already claimed

The Supreme Court's directive on saving the coastal zone in West Bengal is being followed religiously by the state pollution control board. Prawn farms will no longer function unless they follow